A combination of skin that has become tan and skin that is still red from a sunburn. It appears when you start to expose skin to the sun for long periods of time when you previously never did.
Man, my arms are so red-tan when I start working outside in the summer.
A rash, disease or infection that is the result of not using protection when visiting a prostitute.
Did Joey tell you about his trip to Amsterdam. Dude got himself a bit of a red light tan